As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER A NORMAL LANDING, CFI (WITH 80 HOURS IN TYPE) AND STUDENT (WITH 1.2 HOURS IN TYPE) LOST CONTROL OF THE AIRCRAFT, EXITED THE RUNWAY, AND CAME TO REST IN A DRAINAGE DITCH. THEY STATED THAT THE EXTREME SENSITIVITY OF THE NOSEWHEEL STEERING LED TO PILOT INDUCED OSCILLATIONS THAT GREW PROGRESSIVELY WORSE UNTIL THE AIRPLANE WAS COMPLETELY UNCONTROLLABLE. THE SENSITIVITY OF THE NOSEWHEEL STEERING IS A COMMON COMPLAINT, AND HAS BEEN CITED IN SEVERAL OTHER INCIDENTS.